幼龄“四园”瘠薄地套种春大豆丰产栽培技术浙江省景宁县农业局林昌庭，陈海玉，赵华仙，林敏莉景宁是个“九山半水半分田”的林业县和贫困县。全县有山地２３３万亩，其中可套种旱粮作物的幼龄茶、果、桑园和林地（简称“四园”）有５万余亩。为开发利用山区土地资源，从... Youth “four parks” barren intercropping spring soybean cultivation techniques of cultivation Jingning County, Zhejiang Province Bureau of Agriculture Lin Changting, Chen Haiyu, Zhao Hua Xian, Lin Minli Jingning is a “nine hills semi-sub-fields” forestry counties and poor counties. The county has 233 million mu of mountainous area, of which young tea, fruit, mulberry and woodland (“SiYuan”), which can intercrop the dry grain crops, have more than 50,000 mu. For the development and utilization of mountain land resources, from ...